PPT-Understanding Enzymes Academic

Biology Enzyme A large protein molecule Specific shape with deep folds on its surface Deep folds form pockets called active site EnzymeSubstrate The shape of the enzyme active site allows another molecule to fit like a lock and key or puzzle pieces. Understanding:. Enzymes have an active site to which specific substrates bind. Enzyme catalysis involves molecular motion and the collision of substrates with the active site. Temperature, pH and substrate concentration affect the rate of activity of enzymes. ch. 12. The protein catalyst. Targets:. Describe the relationship between substrate and an active site in enzymatic reactions. Identify the role of coenzymes and enzymatic reactions. List factors that affect enzymatic activity. Reactions. Most reactions take place in a number of steps which need to be carefully controlled if the cell is to function properly. Enzymes are the most important controllers of cellular reactions. Catalysts. Essential idea: Enzymes control the metabolism of the cell.. Above is just a small part of the IUBMB-. Sigma-Nicholson Metabolic Pathways Chart . aims to show all the metabolic pathways found in eukaryote cells. The chart in it's entirety shows how complex the chemicals reactions needed to support life in a single cell unit. This was mentioned earlier in 2.1, but in addition to the complexity now add to that . E S <=> ES <=> ES* <=> EP <=> E P. Michaelis-Menten Kinetics. E S <=> ES <=> ES* <=> EP <=> E P. Rate of Formation. Substrate. Product. Enzyme. Enzyme-. IMPORTANCE. OF ENZYMES. Enzymes are biological catalysts that:. . I. ncrease. . reaction rates . by lowering the amount of energy needed for the reaction to occur. 100-1000x . faster. !!!. Activation Energy. protein. !. Enzymes are . Biological . catalysts . that . increase. . the rate of metabolic reactions.. Since enzymes speed up chemical reaction rates, what are they called?. Catalyst- . A substance . Part 1. . Chapter 3. Learning outcomes. You should be able to:. explain how enzymes work. describe and explain the factors that affect. enzyme activity. use V. max. and K. m. to compare the affinity of different enzymes for their substrates. Food biochemistry and food processing. 2012. Simpson B.K. (Ed.) 2. nd. . edition,. John Wiley & Sons, . Inc.. Enzymes in food processing. Advantages.. Enzymes are proteins with powerful catalytic . Enzyme & Substrate. An enzyme is a globular protein which acts as a biological catalyst by speeding up the rate of chemical reactions. . Enzymes are . NOT. changed or consumed by the reactions they catalyze and thus can be reused. . Restriction enzymes. Polymerase enzyme. Strand-displacing polymerases. Helicase enzymes. Discovery and Obtainability:. Most enzymes are proteins discovered in cells.. But . DNAzymes. were . descovered. Sisters Enzyme . Video (5:47):. https://. www.youtube.com/watch?v=qgVFkRn8f10. Ricochet Science How Enzymes Work (. 1:20). https://. www.youtube.com/watch?v=UVeoXYJlBtI. AP Biology Catalase Lab Walkthrough (6:45). Presented . by. Ms. . P. . . H. . Giri. Department of Microbiology. Deogiri . College, Aurangabad. B.Sc. T. Y. . Semester VI. Paper No. XIX. Recombinant DNA Technology. Ms. . Priyanka. H. . Giri. DNA manipulating enzymes:. that . catalyze. (. i.e.. , . increase or decrease the rates. of) . chemical reactions. .. . In enzymatic reactions, the . molecules. at the beginning of the process are called . substrates. , and they are converted into different molecules, called the .